Incident Score: Analysis & Impact (FLS1772728484)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of FLSV LLP's Breach and lateral movement inside company's environment.
- Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
- How Rankiteo’s incident engine converts technical details into a normalized incident score.
- How this cyber incident impacts FLSV LLP Rankiteo cyber scoring and cyber rating.
- Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.
Full Incident Analysis Transcript
In this Rankiteo incident briefing, we review the FLSV LLP breach identified under incident ID FLS1772728484.
The analysis begins with a detailed overview of FLSV LLP's information like the linkedin page: https://www.linkedin.com/company/flsv, the number of followers: 1566, the industry type: Accounting and the number of employees: 112 employees
After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 751 and after the incident was 684 with a difference of -67 which is could be a good indicator of the severity and impact of the incident.
In the next step of the video, we will analyze in more details the incident and the impact it had on FLSV LLP and their customers.
On 03 March 2026, Frankel Loughran Starr & Vallone (FLSV) disclosed Data Breach issues under the banner "FLSV Data Breach Exposes Sensitive PII of 28 Massachusetts Residents".
Frankel Loughran Starr & Vallone (FLSV), a U.S.-based accounting and tax advisory firm, reported a data breach on March 3, 2026, disclosing the exposure of sensitive personal information belonging to 28 Massachusetts residents.
The disruption is felt across the environment, and exposing Driver’s license numbers and Social Security numbers, with nearly 28 records at risk.
In response, and stakeholders are being briefed through Notified affected individuals and authorities.
The case underscores how with advisories going out to stakeholders covering Notified affected individuals.
Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.
The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.
MITRE ATT&CK® Correlation Analysis
Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating exact cause whether a cyberattack, insider threat, or other vector remains undisclosed and Exploit Public-Facing Application (T1190) with lower confidence (40%), supported by evidence indicating method of unauthorized access have not been publicly detailed. Under the Credential Access tactic, the analysis identified Modify Authentication Process (T1556) with moderate confidence (50%), supported by evidence indicating driver’s license numbers and Social Security numbers compromised and OS Credential Dumping (T1003) with moderate confidence (50%), supported by evidence indicating sensitive personal information belonging to 28 Massachusetts residents. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (70%), supported by evidence indicating compromised data includes driver’s license numbers and Social Security numbers. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate confidence (60%), supported by evidence indicating data breach exposing sensitive PII of 28 Massachusetts residents and Exfiltration Over Web Service (T1567) with moderate confidence (50%), supported by evidence indicating method of unauthorized access have not been publicly detailed. Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating exact cause of the breach remains undisclosed and Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating high sensitivity of compromised PII (SSNs, driver’s license numbers). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- FLSV LLP Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/flsv/incident/FLS1772728484
- FLSV LLP CyberSecurity Rating page: https://www.rankiteo.com/company/flsv
- FLSV LLP Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/fls1772728484-frankel-loughran-starr-vallone-breach-march-2026/
- FLSV LLP CyberSecurity Score History: https://www.rankiteo.com/company/flsv/history
- FLSV LLP CyberSecurity Incident Source: https://www.claimdepot.com/data-breach/frankel-loughran-starr-vall-2026
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf